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This belongs to the imagery processing design proposal, the topic is the digital image Fourier transformation 。
FFTGUI Demonstration of Finite Fourier Transform. FFTGUI(y) plots real(y), imag(y), real(fft(y)) and imag(fft(y)). ...
A fourier filter for time-series signals. Does not require the Signal Processing Toolbox. There is an interactive vers...
Contourlet is a new approach in image transform. There have something better than Fourier and Wavalet transform.
1，介绍了分数阶Fourier变换的意义并分析了现有的各种一维离散分数阶Fourier变换的算法，重点研究了Ozaktas等提出的量纲归一化算法。根据分数阶Fourier变换的数学及物理意义，将一维变换推广至二维变换的形式，并且实现了二维分...
Example - 3-D Stem Plot of an FFTFor example, fast Fourier transforms are calculated at points around the unit circle on...